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Chelsea High
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2025 Official Accountability Report - Chelsea High
Organization Information
DISTRICT NAME
Chelsea (00570000)		TITLE I STATUS
Title I School
SCHOOL
Chelsea High (00570505)		GRADES SERVED
09,10,11,12
REGION
Coastal		FEDERAL DESIGNATION
Targeted Support and Improvement (TSI), Additional Targeted Support and Improvement (ATSI)

Accountability Information

Overall classificationRequiring assistance or intervention
Reason for classification
In need of focused/targeted support
Among the lowest performing 10% of schools

Low student group performance: Students with Disabilities -English Learners and Former English Learners -High Needs

Low participation rate: Students with Disabilities -All Students
Progress toward improvement targetsAccountability percentile
27% - Moderate progress toward targets3

Overall progress toward improvement targets

 20242025
Annual criterion-referenced target percentage27%27%
Weight40%60%
Cumulative Criterion-referenced target percentage
(2024 x 40%) + (2025 x 60%)		27%
Moderate progress toward targets

2025 Points awarded

2025 Progress toward improvement targets
Indicator All students
(High school grades)		 Lowest performing students
(High school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement04-04-
Mathematics achievement24-24-
Science achievement04-04-
Achievement total21240.021267.5
GrowthEnglish language arts growth14-24-
Mathematics growth24-24-
Growth total3820.04822.5
High school completionFour-year cohort graduation rate44----
Extended engagement rate04----
Annual dropout rate04----
High school completion total41220.0---
Progress toward attaining English language proficiencyEnglish language proficiency total4410.0---
Additional indicatorsChronic absenteeism04-44-
Advanced coursework completion24----
Additional indicators total2810.04410.0
Weighted total2.810.0-2.710.3-
Percentage of possible points 28%-26%-
2025 Annual criterion-referenced target percentage27%

2024 Points awarded

2024 Progress toward improvement targets
Indicator All students
(High school grades)		 Lowest performing students
(High school grades)
Points earned Total possible points Weight % Points earned Total possible points Weight %
AchievementEnglish language arts achievement24-24-
Mathematics achievement04-04-
Science achievement24-04-
Achievement total41240.021267.5
GrowthEnglish language arts growth24-14-
Mathematics growth14-14-
Growth total3820.02822.5
High school completionFour-year cohort graduation rate14----
Extended engagement rate04----
Annual dropout rate44----
High school completion total51220.0---
Progress toward attaining English language proficiencyEnglish language proficiency total3410.0---
Additional indicatorsChronic absenteeism04-04-
Advanced coursework completion14----
Additional indicators total1810.00410.0
Weighted total3.610.0-1.810.3-
Percentage of possible points 36%-18%-
2024 Annual criterion-referenced target percentage27%

Student group percentile

This group's overall performance relative to the performance of the same student group in schools serving similar grades
5

Overall progress toward improvement targets

 20242025
Annual criterion-referenced target percentage36%33%
Weight40%60%
Cumulative Criterion-referenced target percentage
(2024 x 40%) + (2025 x 60%)		34%
Moderate progress toward targets

2025 Points awarded

2025 Progress toward improvement targets
Indicator High Needs Student Group
(High school grades)
Points earned Total possible points Weight %
AchievementEnglish language arts achievement04-
Mathematics achievement24-
Science achievement14-
Achievement total31247.5
GrowthEnglish language arts growth24-
Mathematics growth24-
Growth total4822.5
High school completionFour-year cohort graduation rate44-
Extended engagement rate14-
Annual dropout rate04-
High school completion total51220.0
Progress toward attaining English language proficiencyEnglish language proficiency total---
Additional indicatorsChronic absenteeism04-
Advanced coursework completion24-
Additional indicators total2810.0
Weighted total3.510.7-
Percentage of possible points 33%-
2025 Annual criterion-referenced target percentage33%

2024 Points awarded

2024 Progress toward improvement targets
Indicator High Needs Student Group
(High school grades)
Points earned Total possible points Weight %
AchievementEnglish language arts achievement24-
Mathematics achievement04-
Science achievement24-
Achievement total41247.5
GrowthEnglish language arts growth24-
Mathematics growth14-
Growth total3822.5
High school completionFour-year cohort graduation rate24-
Extended engagement rate04-
Annual dropout rate44-
High school completion total61220.0
Progress toward attaining English language proficiencyEnglish language proficiency total---
Additional indicatorsChronic absenteeism04-
Advanced coursework completion14-
Additional indicators total1810.0
Weighted total3.910.7-
Percentage of possible points 36%-
2024 Annual criterion-referenced target percentage36%

Detailed data for each indicator

English language arts achievement - MCAS average composite scaled score - High school
Group 2024 Achievement 2025 Achievement Change 2025 Target N Points Reason
All Students 483.4 480.1 -3.3 486.9 3190Path Forward: Declined
Lowest Performing 462.4 461.2 -1.2 467.5 530Path Forward: Declined
High Needs 481.2 477.8 -3.4 485.5 2720Path Forward: Declined
English Learners and Former English Learners 464.5 462.5 -2.0 468.0 1230Path Forward: Declined
Low Income 481.4 478.4 -3.0 486.3 2550Path Forward: Declined
Students with Disabilities 469.8 464.8 -5.0 473.0 510Path Forward: Declined
American Indian or Alaska Native-------
Asian---- 4--
Black or African American---- 6--
Hispanic or Latino 482.7 478.9 -3.8 486.4 2880Path Forward: Declined
Multi-Race, Not Hispanic or Latino---- 3--
Native Hawaiian or Other Pacific Islander-------
White---- 18--

Mathematics achievement - MCAS average composite scaled score - High school
Group 2024 Achievement 2025 Achievement Change 2025 Target N Points Reason
All Students 480.6 480.9 0.3 484.7 3122Path Forward: Improved Below Target
Lowest Performing 463.4 466.3 2.9 468.5 532Path Forward: Improved Below Target
High Needs 479.0 479.5 0.5 483.2 2672Path Forward: Improved Below Target
English Learners and Former English Learners 470.0 468.7 -1.3 475.1 1160Path Forward: Declined
Low Income 478.9 479.9 1.0 482.7 2492Path Forward: Improved Below Target
Students with Disabilities 469.5 468.6 -0.9 473.6 540Path Forward: Declined
American Indian or Alaska Native-------
Asian---- 4--
Black or African American---- 8--
Hispanic or Latino 479.9 480.1 0.2 483.7 2792Path Forward: Improved Below Target
Multi-Race, Not Hispanic or Latino---- 3--
Native Hawaiian or Other Pacific Islander-------
White---- 18--

Science achievement - MCAS average composite scaled score - High school
Group 2024 Achievement 2025 Achievement Change 2025 Target N Points Reason
All Students 481.4 480.5 -0.9 484.5 2940Path Forward: Declined
Lowest Performing 461.8 460.8 -1.0 465.7 510Path Forward: Declined
High Needs 479.7 479.5 -0.2 483.0 2491Path Forward: No Change
English Learners and Former English Learners 468.8 468.5 -0.3 472.8 881Path Forward: No Change
Low Income 480.0 480.2 0.2 483.2 2312Path Forward: Improved Below Target
Students with Disabilities 468.1 468.8 0.7 471.3 522Recovery Path: Improved Below Target
American Indian or Alaska Native-------
Asian---- 4--
Black or African American---- 5--
Hispanic or Latino 481.0 479.5 -1.5 484.5 2630Path Forward: Declined
Multi-Race, Not Hispanic or Latino---- 4--
Native Hawaiian or Other Pacific Islander-------
White---- 18--

English language arts growth - High school
Group 2025 Mean SGP N Points Reason
All Students 39.8 2421Low Growth
Lowest Performing 41.3 532Typical Growth - Low
High Needs 40.3 1982Typical Growth - Low
English Learners and Former English Learners 43.1 562Typical Growth - Low
Low Income 40.8 1842Typical Growth - Low
Students with Disabilities 34.2 411Low Growth
American Indian or Alaska Native----
Asian- 4--
Black or African American- 5--
Hispanic or Latino 39.4 2131Low Growth
Multi-Race, Not Hispanic or Latino- 3--
Native Hawaiian or Other Pacific Islander----
White- 17--

Mathematics growth - High school
Group 2025 Mean SGP N Points Reason
All Students 46.3 2442Typical Growth - Low
Lowest Performing 42.2 532Typical Growth - Low
High Needs 44.9 2022Typical Growth - Low
English Learners and Former English Learners 42.2 572Typical Growth - Low
Low Income 44.6 1872Typical Growth - Low
Students with Disabilities 40.7 452Typical Growth - Low
American Indian or Alaska Native----
Asian- 4--
Black or African American- 7--
Hispanic or Latino 45.8 2132Typical Growth - Low
Multi-Race, Not Hispanic or Latino- 3--
Native Hawaiian or Other Pacific Islander----
White- 17--

Four-year cohort graduation rate - High school
Group 2023 Rate (%) 2024 Rate (%) Change Target (%) N Points Reason
All Students 76.0 82.1 6.1 80.5 3584Exceeded Target
Lowest Performing-------
High Needs 74.8 81.2 6.4 79.9 3364Exceeded Target
English Learners and Former English Learners 60.5 65.5 5.0 66.1 1132Improved Below Target
Low Income 76.4 81.6 5.2 81.7 3323Met Target
Students with Disabilities 66.7 61.5 -5.2 75.8 520Declined
American Indian or Alaska Native---- 1--
Asian---- 5--
Black or African American---- 18--
Hispanic or Latino 75.2 81.6 6.4 81.6 3163Met Target
Multi-Race, Not Hispanic or Latino-------
Native Hawaiian or Other Pacific Islander-------
White---- 18--

Extended engagement rate - High school
Group 2022 Rate (%) 2023 Rate (%) Change Target (%) N Points Reason
All Students 81.6 81.0 -0.6 84.3 3370Declined
Lowest Performing-------
High Needs 80.5 80.3 -0.2 84.1 3141No Change
English Learners and Former English Learners 64.8 66.4 1.6 71.8 1192Improved Below Target
Low Income 80.9 81.4 0.5 85.2 3012Improved Below Target
Students with Disabilities 78.9 78.8 -0.1 85.9 331No Change
American Indian or Alaska Native-------
Asian-------
Black or African American---- 16--
Hispanic or Latino 80.7 79.9 -0.8 84.8 2980Declined
Multi-Race, Not Hispanic or Latino---- 3--
Native Hawaiian or Other Pacific Islander-------
White---- 20--

Annual dropout rate - High school
Group 2023 Rate (%) 2024 Rate (%) Change Target (%) N Points Reason
All Students 3.0 4.6 1.6 2.7 1,6750Declined
Lowest Performing-------
High Needs 3.2 5.2 2.0 2.9 1,4550Declined
English Learners and Former English Learners 6.0 10.1 4.1 5.4 5620Declined
Low Income 2.9 4.9 2.0 2.6 1,2750Declined
Students with Disabilities 3.4 2.8 -0.6 3.1 2473Met Target
American Indian or Alaska Native---- 3--
Asian---- 17--
Black or African American---- 64--
Hispanic or Latino 3.1 4.9 1.8 2.8 1,4950Declined
Multi-Race, Not Hispanic or Latino---- 10--
Native Hawaiian or Other Pacific Islander-------
White---- 86--

Progress toward attaining English language proficiency - High school
Group 2024 Rate (%) 2025 Rate (%) Change Target N Points Reason
All Students 10.4 16.0 5.6 11.9 4384Exceeded Target
Lowest Performing-------
High Needs-------
English Learners and Former English Learners 10.4 16.0 5.6 11.9 4384Exceeded Target
Low Income-------
Students with Disabilities-------
American Indian or Alaska Native-------
Asian-------
Black or African American-------
Hispanic or Latino-------
Multi-Race, Not Hispanic or Latino-------
Native Hawaiian or Other Pacific Islander-------
White-------

Chronic absenteeism - High school
Group 2024 Rate (%) 2025 Rate (%) Change Target N Points Reason
All Students 47.3 48.1 0.8 44.3 1,6730Declined
Lowest Performing 55.6 35.8 -19.8 48.7 534Exceeded Target
High Needs 49.3 50.5 1.2 45.7 1,4520Declined
English Learners and Former English Learners 51.5 52.1 0.6 47.1 6810Declined
Low Income 49.2 50.4 1.2 45.2 1,3700Declined
Students with Disabilities 59.3 60.0 0.7 55.5 2200Declined
American Indian or Alaska Native---- 2--
Asian---- 14--
Black or African American---- 88--
Hispanic or Latino 48.1 49.4 1.3 44.2 1,4670Declined
Multi-Race, Not Hispanic or Latino---- 14--
Native Hawaiian or Other Pacific Islander-------
White---- 88--

Advanced coursework completion - High school
Group 2024 Rate (%) 2025 Rate (%) Change Target N Points Reason
All Students 63.3 65.0 1.7 68.1 7112Improved Below Target
Lowest Performing-------
High Needs 59.8 62.0 2.2 64.9 6022Improved Below Target
English Learners and Former English Learners 48.9 46.2 -2.7 56.5 2380Declined
Low Income 60.3 63.0 2.7 65.6 5652Improved Below Target
Students with Disabilities 18.5 27.6 9.1 24.0 1054Exceeded Target
American Indian or Alaska Native---- 2--
Asian---- 9--
Black or African American---- 30--
Hispanic or Latino 61.8 63.8 2.0 68.3 6192Improved Below Target
Multi-Race, Not Hispanic or Latino---- 6--
Native Hawaiian or Other Pacific Islander-------
White---- 45--

Assessment participation - All students
Group English language arts Mathematics Science
Enrolled Assessed % Met Target? Years in Rate Enrolled Assessed % Met Target? Years in Rate Enrolled Assessed % Met Target? Years in Rate
All Students 377 34795Yes 2 374 33994No 2 375 35795Yes 1

Assessment participation - Student Group
Group English language arts Mathematics Science Overall
Enrolled Assessed Enrolled Assessed Enrolled Assessed Total Enrolled Total Assessed % Met Target? Years in Rate
High Needs 328 299 325 293 326 308 979 90095Yes2
English Learners and Former English Learners 151 146 149 138 149 134 449 41895Yes2
Low Income 306 280 303 273 304 287 913 84095Yes2
Students with Disabilities 65 53 64 56 65 57 194 16690No2
American Indian or Alaska Native-----------
Asian 4 4 4 4 4 4 12----
Black or African American 13 10 13 12 13 12 39----
Hispanic or Latino 336 311 333 301 334 317 1,003 92995Yes2
Multi-Race, Not Hispanic or Latino 4 3 4 3 4 4 12----
Native Hawaiian or Other Pacific Islander-----------
White 20 19 20 19 20 20 60 5897Yes1


About this report

Overall classification: All Massachusetts districts and schools with sufficient data are classified into one of two accountability categories: districts and schools requiring assistance or intervention, and districts and schools not requiring assistance or intervention. The reason(s) for the district's or school's classification are noted on this report.

Progress toward improvement targets: The criterion-referenced target percentage combines multiple years of data related to achievement, growth, high school completion, English learner progress, advanced coursework completion, and chronic absenteeism into a single number between 0 and 100. For a group to be considered to be meeting targets it must have a cumulative criterion-referenced target percentage of 75% or higher.

The annual criterion-referenced target percentage is calculated by dividing the weighted total points earned by the weighted total possible points. The calculation for each is displayed below.

Weighted total of points earned = (Total achievement points earned x Achievement weight) + (Total growth points earned x Growth weight) + (Total high school completion points earned x high school completion weight) + (EL progress points earned x EL progress weight) + (Total additional indicator points earned x Additional indicator weight)

The cumulative criterion-referenced target percentage represents a weighted average of the annual criterion-referenced target percentages. At a minimum, a group must have an annual criterion-referenced target percentage for the most recent year in order to receive a cumulative percentage.

Accountability percentile: An accountability percentile between 1 and 99 is reported for most schools. This number is an indication of the school's overall performance relative to other schools that serve similar grades, and is calculated using multiple years of data for all accountability indicators. School percentiles are not calculated for districts.


Resources
Interpretive Materials Interpretive Materials
Accountability Terms Glossary of Accountability Terms

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